sqlmap/lib/controller/controller.py
Bernardo Damele 7e3b24afe6 Rewrite from scratch the detection engine. Now it performs checks defined in payload.xml. User can specify its own.
All (hopefully) functionalities should still be working.
Added two switches, --level and --risk to specify which injection tests and boundaries to use.
The main advantage now is that sqlmap is able to identify initially which injection types are present so for instance if boolean-based blind is not supported, but error-based is, sqlmap will keep going and work!
2010-11-28 18:10:54 +00:00

428 lines
16 KiB
Python

#!/usr/bin/env python
"""
$Id$
Copyright (c) 2006-2010 sqlmap developers (http://sqlmap.sourceforge.net/)
See the file 'doc/COPYING' for copying permission
"""
import re
from lib.controller.action import action
from lib.controller.checks import checkSqlInjection
from lib.controller.checks import heuristicCheckSqlInjection
from lib.controller.checks import checkDynParam
from lib.controller.checks import checkStability
from lib.controller.checks import checkString
from lib.controller.checks import checkRegexp
from lib.controller.checks import checkConnection
from lib.controller.checks import checkNullConnection
from lib.core.agent import agent
from lib.core.common import dataToStdout
from lib.core.common import getUnicode
from lib.core.common import paramToDict
from lib.core.common import parseTargetUrl
from lib.core.common import readInput
from lib.core.data import conf
from lib.core.data import kb
from lib.core.data import logger
from lib.core.dump import dumper
from lib.core.enums import HTTPMETHOD
from lib.core.enums import PAYLOAD
from lib.core.enums import PLACE
from lib.core.exception import exceptionsTuple
from lib.core.exception import sqlmapNotVulnerableException
from lib.core.exception import sqlmapSilentQuitException
from lib.core.exception import sqlmapValueException
from lib.core.exception import sqlmapUserQuitException
from lib.core.session import setBooleanBased
from lib.core.session import setError
from lib.core.session import setInjection
from lib.core.session import setMatchRatio
from lib.core.session import setStacked
from lib.core.session import setTimeBased
from lib.core.target import initTargetEnv
from lib.core.target import setupTargetEnv
def __saveToSessionFile():
for inj in kb.injections:
place = inj.place
parameter = inj.parameter
for stype, sdata in inj.data.items():
payload = sdata[3]
if stype == 1:
kb.booleanTest = payload
setBooleanBased(place, parameter, payload)
elif stype == 2:
kb.errorTest = payload
setError(place, parameter, payload)
elif stype == 4:
kb.stackedTest = payload
setStacked(place, parameter, payload)
elif stype == 5:
kb.timeTest = payload
setTimeBased(place, parameter, payload)
setInjection(inj)
def __selectInjection():
"""
Selection function for injection place, parameters and type.
"""
# TODO: when resume from session file, feed kb.injections and call
# __selectInjection()
points = []
for i in xrange(0, len(kb.injections)):
place = kb.injections[i].place
parameter = kb.injections[i].parameter
ptype = kb.injections[i].ptype
point = (place, parameter, ptype)
if point not in points:
points.append(point)
if len(points) == 1:
kb.injection = kb.injections[0]
elif len(points) > 1:
message = "there were multiple injection points, please select "
message += "the one to use for following injections:\n"
points = []
for i in xrange(0, len(kb.injections)):
place = kb.injections[i].place
parameter = kb.injections[i].parameter
ptype = kb.injections[i].ptype
point = (place, parameter, ptype)
if point not in points:
points.append(point)
message += "[%d] place: %s, parameter: " % (i, place)
message += "%s, type: %s" % (parameter, PAYLOAD.PARAMETER[ptype])
if i == 0:
message += " (default)"
message += "\n"
message += "[q] Quit"
select = readInput(message, default="0")
if select.isdigit() and int(select) < len(kb.injections) and int(select) >= 0:
index = int(select)
elif select[0] in ( "Q", "q" ):
raise sqlmapUserQuitException
else:
errMsg = "invalid choice"
raise sqlmapValueException, errMsg
kb.injection = kb.injections[index]
def __formatInjection(inj):
header = "Place: %s\n" % inj.place
header += "Parameter: %s\n" % inj.parameter
data = ""
for stype, sdata in inj.data.items():
data += "Type: %s\n" % PAYLOAD.SQLINJECTION[stype]
data += "Payload: %s\n\n" % sdata[3]
return header, data
def __showInjections():
dataToStdout("sqlmap identified the following injection points:\n")
for inj in kb.injections:
header, data = __formatInjection(inj)
dumper.technic(header, data)
def start():
"""
This function calls a function that performs checks on both URL
stability and all GET, POST, Cookie and User-Agent parameters to
check if they are dynamic and SQL injection affected
"""
if not conf.start:
return False
if conf.direct:
initTargetEnv()
setupTargetEnv()
action()
return True
if conf.url and not conf.forms:
kb.targetUrls.add(( conf.url, conf.method, conf.data, conf.cookie ))
if conf.configFile and not kb.targetUrls:
errMsg = "you did not edit the configuration file properly, set "
errMsg += "the target url, list of targets or google dork"
logger.error(errMsg)
return False
if kb.targetUrls and len(kb.targetUrls) > 1:
infoMsg = "sqlmap got a total of %d targets" % len(kb.targetUrls)
logger.info(infoMsg)
hostCount = 0
cookieStr = ""
setCookieAsInjectable = True
for targetUrl, targetMethod, targetData, targetCookie in kb.targetUrls:
try:
conf.url = targetUrl
conf.method = targetMethod
conf.data = targetData
conf.cookie = targetCookie
injData = []
initTargetEnv()
parseTargetUrl()
testSqlInj = False
if PLACE.GET in conf.parameters:
for parameter in re.findall(r"([^=]+)=[^&]+&?", conf.parameters[PLACE.GET]):
paramKey = (conf.hostname, conf.path, PLACE.GET, parameter)
if paramKey not in kb.testedParams:
testSqlInj = True
break
else:
paramKey = (conf.hostname, conf.path, None, None)
if paramKey not in kb.testedParams:
testSqlInj = True
if not testSqlInj:
infoMsg = "skipping '%s'" % targetUrl
logger.info(infoMsg)
continue
if conf.multipleTargets:
hostCount += 1
if conf.forms:
name = kb.formNames[(targetUrl, targetMethod, targetData, targetCookie)]
message = "[#%d] %s:\n%s %s" % (hostCount, "form%s" % (" '%s'" % name if name else ""), conf.method or HTTPMETHOD.GET, targetUrl)
else:
message = "%s %d:\n%s %s" % ("url", hostCount, conf.method or HTTPMETHOD.GET, targetUrl)
if conf.cookie:
message += "\nCookie: %s" % conf.cookie
if conf.data:
message += "\nPOST data: %s" % repr(conf.data) if conf.data else ""
if conf.forms:
if conf.method == HTTPMETHOD.GET and targetUrl.find("?") == -1:
continue
message += "\ndo you want to test this form? [Y/n/q] "
test = readInput(message, default="Y")
if not test or test[0] in ("y", "Y"):
if conf.method == HTTPMETHOD.POST:
message = "Edit POST data [default: %s]: " % (conf.data if conf.data else "")
conf.data = readInput(message, default=conf.data)
elif conf.method == HTTPMETHOD.GET:
if conf.url.find("?") > -1:
firstPart = conf.url[:conf.url.find("?")]
secondPart = conf.url[conf.url.find("?")+1:]
message = "Edit GET data [default: %s]: " % secondPart
test = readInput(message, default=secondPart)
conf.url = "%s?%s" % (firstPart, test)
elif test[0] in ("n", "N"):
continue
elif test[0] in ("q", "Q"):
break
else:
message += "\ndo you want to test this url? [Y/n/q]"
test = readInput(message, default="Y")
if not test or test[0] in ("y", "Y"):
pass
elif test[0] in ("n", "N"):
continue
elif test[0] in ("q", "Q"):
break
logMsg = "testing url %s" % targetUrl
logger.info(logMsg)
setupTargetEnv()
if not checkConnection(conf.forms) or not checkString() or not checkRegexp():
continue
if conf.nullConnection:
checkNullConnection()
if not conf.dropSetCookie and conf.cj:
for _, cookie in enumerate(conf.cj):
cookie = getUnicode(cookie)
index = cookie.index(" for ")
cookieStr += "%s;" % cookie[8:index]
if cookieStr:
cookieStr = cookieStr[:-1]
if PLACE.COOKIE in conf.parameters:
message = "you provided an HTTP Cookie header value. "
message += "The target url provided its own Cookie within "
message += "the HTTP Set-Cookie header. Do you want to "
message += "continue using the HTTP Cookie values that "
message += "you provided? [Y/n] "
test = readInput(message, default="Y")
if not test or test[0] in ("y", "Y"):
setCookieAsInjectable = False
if setCookieAsInjectable:
conf.httpHeaders.append(("Cookie", cookieStr))
conf.parameters[PLACE.COOKIE] = cookieStr
__paramDict = paramToDict(PLACE.COOKIE, cookieStr)
if __paramDict:
conf.paramDict[PLACE.COOKIE] = __paramDict
# TODO: consider the following line in __setRequestParams()
__testableParameters = True
if not kb.injection.place or not kb.injection.parameter:
if not conf.string and not conf.regexp and not conf.eRegexp:
# NOTE: this is not needed anymore, leaving only to display
# a warning message to the user in case the page is not stable
checkStability()
# Do a little prioritization reorder of a testable parameter list
parameters = conf.parameters.keys()
for place in (PLACE.URI, PLACE.POST, PLACE.GET):
if place in parameters:
parameters.remove(place)
parameters.insert(0, place)
for place in parameters:
if not conf.paramDict.has_key(place):
continue
paramDict = conf.paramDict[place]
for parameter, value in paramDict.items():
testSqlInj = True
# TODO: with the new detection engine, review this
# part. Perhaps dynamicity test will not be of any
# use
paramKey = (conf.hostname, conf.path, place, parameter)
if paramKey in kb.testedParams:
testSqlInj = False
infoMsg = "skipping previously processed %s parameter '%s'" % (place, parameter)
logger.info(infoMsg)
# Avoid dinamicity test if the user provided the
# parameter manually
elif parameter in conf.testParameter:
pass
elif not checkDynParam(place, parameter, value):
warnMsg = "%s parameter '%s' is not dynamic" % (place, parameter)
logger.warn(warnMsg)
testSqlInj = False
else:
logMsg = "%s parameter '%s' is dynamic" % (place, parameter)
logger.info(logMsg)
kb.testedParams.add(paramKey)
if testSqlInj:
# TODO: with the new detection engine, review this
# part. This will be moved to payloads.xml as well
heuristicCheckSqlInjection(place, parameter, value)
logMsg = "testing sql injection on %s " % place
logMsg += "parameter '%s'" % parameter
logger.info(logMsg)
injection = checkSqlInjection(place, parameter, value)
if injection:
kb.injections.append(injection)
else:
warnMsg = "%s parameter '%s' is not " % (place, parameter)
warnMsg += "injectable"
logger.warn(warnMsg)
if len(kb.injections) == 0 and not kb.injection.place and not kb.injection.parameter:
errMsg = "all parameters are not injectable, try "
errMsg += "a higher --level"
raise sqlmapNotVulnerableException, errMsg
else:
__saveToSessionFile()
__showInjections()
__selectInjection()
if kb.injection.place and kb.injection.parameter:
if conf.multipleTargets:
message = "do you want to exploit this SQL injection? [Y/n] "
exploit = readInput(message, default="Y")
condition = not exploit or exploit[0] in ("y", "Y")
else:
condition = True
if condition:
if kb.paramMatchRatio:
conf.matchRatio = kb.paramMatchRatio[(kb.injection.place, kb.injection.parameter)]
setMatchRatio()
action()
except KeyboardInterrupt:
if conf.multipleTargets:
warnMsg = "Ctrl+C detected in multiple target mode"
logger.warn(warnMsg)
message = "do you want to skip to the next target in list? [Y/n/q]"
test = readInput(message, default="Y")
if not test or test[0] in ("y", "Y"):
pass
elif test[0] in ("n", "N"):
return False
elif test[0] in ("q", "Q"):
raise sqlmapUserQuitException
else:
raise
except sqlmapUserQuitException:
raise
except sqlmapSilentQuitException:
raise
except exceptionsTuple, e:
e = getUnicode(e)
if conf.multipleTargets:
e += ", skipping to the next %s" % ("form" if conf.forms else "url")
logger.error(e)
else:
logger.critical(e)
return False
if conf.loggedToOut:
logger.info("Fetched data logged to text files under '%s'" % conf.outputPath)
return True